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Boston Weather: 49.0°F | Partly Cloudy and Windy

Weather: A Fast Flow

Weather

A Fast Flow

By Marek Zebrowski
Staff Meteorologist

Two cyclones, embedded in a zonal (west-east) flow will dominate our weather this weekend. A quick burst of light to moderate precipitation will precede both events, as temperatures will remain warmer than normal.

During Friday, the first low will move to our west, and continue through northern New England as it intensifies and slows down over the Maritimes later in the weekend. Glancing blow of cooler air, associated with a small high pressure ridge will follow on Saturday. The next system will approach us from upper Great Lakes early on Sunday, bringing some rain to southern sections of the region and snow well to the north. Cold front associated with this Sunday feature will most likely mark the end of our biref warmup: a new arctic high is building over the northwestern Canada, and is expected to settle southward, bringing much colder weather to central and eastern sections of the U.S. by the middle of next week.

A note for ski fanatics: this Friday's storm will produce at least 6 in. (15 cm) of new snow in central and northern areas of Vermont, New Hampshire and Maine. Wrap around moisture will favor continuation of snowshowers and snowsqualls through a better part of Saturday. Good to excellent conditions will be the rule on most slopes.

Today: Cloudy early with light rain tapering off. Clouds will begin breaking by midday with some sun in the afternoon. High 43F (6C) with fresh westerly winds.

Tonight: Partly cloudy, turning colder with a chance of widely scattered flurries. Biting northwesterly winds. Low 27F (-3C).

Saturday: Mostly sunny and seasonable. High 40F (5C), northwesterly winds shifting toward southwest late in the evening.

Sunday outlook: Mostly cloudy with rain developing. High near 40F (4C).